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An Elastic Micropolar Mixture Theory Approach for Predicting Elastic Properties of Open Cell Foams

[+] Author Affiliations
Shreehari Elangovan, Gregory M. Odegard

Michigan Technological University, Houghton, MI

Burhanettin S. Altan

Tiger Strategy LLC, Houghton, MI

Paper No. IMECE2007-41435, pp. 913-923; 11 pages
doi:10.1115/IMECE2007-41435
From:
  • ASME 2007 International Mechanical Engineering Congress and Exposition
  • Volume 10: Mechanics of Solids and Structures, Parts A and B
  • Seattle, Washington, USA, November 11–15, 2007
  • Conference Sponsors: ASME
  • ISBN: 0-7918-4304-1 | eISBN: 0-7918-3812-9
  • Copyright © 2007 by ASME

abstract

A constitutive model has been developed to predict the elastic response of two dimensional balsa wood material with a distribution of cell geometries. Two planar triangular grids, each assumed to represent the structural network of an open cell foam material, are superimposed to model an overall cellular structure with a distribution of cell geometries. The elastic mixture theory is applied in conjunction with the micropolar elasticity theory to homogenize the cellular structure and to establish the overall constitutive relationship.

Copyright © 2007 by ASME

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